CN107391845A - A kind of method for numerical simulation in tobacco edulcoration device flow field - Google Patents
A kind of method for numerical simulation in tobacco edulcoration device flow field Download PDFInfo
- Publication number
- CN107391845A CN107391845A CN201710603660.2A CN201710603660A CN107391845A CN 107391845 A CN107391845 A CN 107391845A CN 201710603660 A CN201710603660 A CN 201710603660A CN 107391845 A CN107391845 A CN 107391845A
- Authority
- CN
- China
- Prior art keywords
- mrow
- msub
- model
- mfrac
- air stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
Abstract
The invention provides a kind of method for numerical simulation in tobacco edulcoration device flow field, including：Three-dimensional drawing software creo 3.0 builds the physical model and grid division of tobacco edulcoration device cavity, and sets the boundary condition of model；The physical model includes gas channel, airflow inlet, tabula rasa, the first air stream outlet, the second air stream outlet, entrusts plate, gas channel, which is arranged at, to be entrusted above plate, tabula rasa is arranged in gas channel, airflow inlet is arranged in gas channel side wall and is located at tabula rasa top, and the first air stream outlet and the second air stream outlet are located at respectively entrusts plate both sides；The model of grid division is imported in fluent softwares, increases influence of the source item come porous zone stream field in simulation model in the equation of momentum based on porous media model；Airflow characteristic is obtained to the model solution of grid division.
Description
Technical field
The present invention relates to a kind of fluid calculation technology, particularly a kind of value analogy method of tobacco edulcoration device flow field number.
Background technology
Removing foreign material from tobacco device is used exclusively for miscellaneous in on-line real-time measuremen tobacco in redrying enterprise progress tobacco leaf production
The system of thing.Debris problem perplexs tobacco enterprise, not only has a strong impact on the inherent quality of cigarette product, can also lead to equipment thing
Therefore therefore usually require to carry out removal of impurities processing to tobacco leaf.Tang Xiangyang exists《The flow field CAE of tobacco sorter material systems stabilisation points
Analysis》One is disclosed herein a kind of flow field analysis of tobacco sorter material system, but the device is not provided with homogenating plate.Wang Hua exists
《The equal wind effect numerical simulation of tobacco edulcoration machine homogenating plate》One is disclosed herein a kind of numerical simulation in the flow field of tobacco edulcoration machine
Method, although the device is provided with equal scoreboard, using traditional algorithm, calculating that the unstrctured grid model of division is carried out,
Number of grid reaches 6071032, calculates difficulty.
The content of the invention
It is an object of the invention to provide a kind of value analogy method of tobacco edulcoration device flow field number, simplify constructed
Model, result of calculation is more accurate, greatly reduces the amount of calculation of computer.
The technical scheme for realizing the object of the invention is：A kind of method for numerical simulation in tobacco edulcoration device flow field, including with
Lower step：
Three-dimensional drawing software creo 3.0 builds the physical model and grid division of tobacco edulcoration device cavity, and sets mould
The boundary condition of type；The physical model include gas channel, airflow inlet, tabula rasa, the first air stream outlet, the second air stream outlet,
Plate is entrusted, gas channel, which is arranged at, to be entrusted above plate, and tabula rasa is arranged in gas channel, and airflow inlet is arranged at gas channel side
On wall and it is located at tabula rasa top, the first air stream outlet and the second air stream outlet are located at respectively entrusts plate both sides；
The model of grid division is imported in fluent softwares, source item is increased in the equation of momentum based on porous media model
Carry out the influence of porous zone stream field in simulation model；
Airflow characteristic is obtained to the model solution of grid division.
The present invention carries out numerical simulation using porous media model to the flow field characteristic of tobacco edulcoration device, analyzes porous
The distribution character of speed, is simplified to model in dielectric model Fluid field, the model partition number of grid with unreduced pair
Compared between 6,000,000 to 8,000,000, and the number of grid after the present invention simplifies is 1015800, saves stored memory and meter
Calculate resource.
The present invention is described further with reference to Figure of description.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Fig. 2 is the schematic perspective view of unreduced model.
Fig. 3 is the side view of unreduced model.
Model schematic after Fig. 4 simplifies for the present invention.
Fig. 5 is the unstrctured grid model schematic of device.
Fig. 6 is the structured grid model schematic of device.
Fig. 7 is numerical simulation effect diagram of the tobacco edulcoration device in the case where being not added with homogenating plate.
Fig. 8 is numerical simulation effect diagram of the tobacco edulcoration device in the case of application porous media model.
Embodiment
Porous media model is to utilize a kind of solving model in fluent, utilizes two parameters：Sticky parameter and inertia
Parameter replaces the effect of original homogenating plate, compared with general direct method for numerical simulation, using porous media model
The number of grid of calculating greatly reduces, and is all the hexahedral mesh of structuring, and result of calculation is more accurate, greatly reduces meter
The amount of calculation of calculation machine.
The present invention proposes a kind of method for numerical simulation in tobacco edulcoration device flow field based on porous media model, with reference to figure
1, this method comprises the following steps：
Step 1, the physical model and division net of tobacco edulcoration device cavity are built based on three-dimensional drawing software creo 3.0
Lattice, and the boundary condition of model is set；
Step 2, the model of grid division is imported in fluent softwares, increased based on porous media model in the equation of momentum
Source item is added to carry out the influence of porous zone stream field in simulation model；
Step 3, airflow characteristic is obtained to the model solution of grid division.
Mesh quality is for the correct of numerical computations and stably plays very important effect, unstrctured grid quality requirement
Quality is at least more than 0.3, and structured grid requires quality at least more than 0.5.In general, the calculating knot of structured grid
Fruit is easier to restrain than the grid of unstrctured grid, also more accurate, simpler, the number although unstrctured grid division is got up
Amount is too many, is unfavorable for computer data storage and accelerates calculating speed.
Master mould is due to the presence of large number of orifices system on homogenating plate in step 1, and structured grid mesh generation is very difficult, therefore
Unstrctured grid is taken master mould grid, and model imported into workbench the division for completing unstrctured grid, number of grid
Reach 7089000, mesh quality is more than 0.36.Master mould is imported into ICEM CFD softwares, imported into ICEM CFD
The division of structured grid, number of grid 1015800 are carried out, mesh quality is more than 0.7.
It is unreduced before model as shown in Figure 2,3, including back plate 1, right plate 2, homogenating plate 3, entrust plate 4, left plate 5,
Admission line 6, foreboard 7, accelerator card 8, complicated and redundancy, if carrying out mesh generation according to the model, number of grid is
7890000.And model is simplified in step 1, the plate of redundancy is all removed, at the same the hole system of homogenating plate is whole
Remove, instead one piece of tabula rasa substitutes, and the model after simplifying is as shown in figure 4, including gas channel 15, airflow inlet 11, tabula rasa
14th, the first air stream outlet 13, the second air stream outlet 12, entrust plate 16, gas channel 15, which is arranged at, entrusts the top of plate 4, tabula rasa 14
It is arranged in gas channel 15, airflow inlet 11 is arranged in the side wall of gas channel 15 and positioned at the top of tabula rasa 14, the first air-flow
The air stream outlet 12 of outlet 13 and second is located at respectively entrusts the both sides of plate 16.The structuring hexahedron net of model after subdivided simplification
Lattice, number of grid 1058100.
Boundary condition is collectively known as definite condition with initial value, only after boundary condition and primary condition determine, stream
Just there is solution field, and is uniquely to solve.Fluent primary condition is completed in initialization procedure, and boundary condition then needs
Individually set.This model first carries out PART setting in ICEM CFD, and boundary condition is directly set in fluent
It is fixed：：Gas access 6 is arranged to speed entrance, and gas vent 1 is arranged to pressure export, and outlet 2 is arranged to pressure export, porous
Setup of entrances and exits up and down between domain 3 and both ends fluid domain is inner boundary interior, concurrently sets initial value.
The model of grid division is imported in fluent softwares in step 2, fluent softwares are configured, including：
(1) turbulence model selects K-epsilon models；
(2) use and be based on Pressure solution device and simple algorithms；
(3) convective term difference scheme selects second order form；
(4) porous zone and laminar check boxes are chosen in porous domain porous, and under porous zone labels
Sticky force parameter and the inertia force parameter through homogenating plate is derived with empirical equation；
(5) boundary condition initial value is set；
(6) iterative steps and convergence precision are set, when residual error is less than 10 in flow field-3When think to restrain.
Parameter in porous media model is set：
(1) flow parameter through homogenating plate is derived with empirical equation：
(2) loss of pressure on homogenating plate is calculated with Van Winkle equations.The equation is applied to equal in being equally spaced
The turbulent flow of aerofoil calculates, and concrete form is as follows：
WillBring above formula into, and divided by thickness of slab t obtain：
In formulaTo pass through the mass flow of plate, AfFor the gross area in hole, ApThe gross area (solid and hole and) of plate, D/t
The ratio between bore dia and thickness of slab, C are the coefficients with Reynolds number and D/t changes, and its value can be obtained by tabling look-up.D/t>1.6, and Re
>When 4000, C is approximately equal to 0.98, and wherein Reynolds number is to do feature length with the diameter in hole, and the speed of fluid does characteristic velocity in hole
Obtain.
Fluent softwares, which are solved established airflow characteristic governing equation group to model, to be included：
(1) continuity equation
(2) equation of momentum of general solving model
Wherein, xk、xiRepresent different directions, μk、μiRepresent the flow velocity of different directions, ρ density, μ fluid velocities, p pressure；
(3) equation of momentum of porous media model has additional momentum source term
Wherein it is siBe i to (x, y, orz) momentum source term, D and C are viscous drag and inertia loss coefficient matrix respectively.
And for simple homogeneous porous medium：
Wherein α is permeability, C2It is inertial resistance coefficient, simply specified D and C is respectively diagonal matrixAnd C2, Qi Taxiang
It is zero.
Standard energy transport equation is still solved for porous media flows, fluent in step 3, simply have modified conduction stream
Amount and excessive item.In porous media, conduction flow use is effectively conducted coefficient, and transition item includes the heat in dielectric solid region
Inertia：
Wherein：
hfFor the enthalpy of fluid, hsFor the enthalpy of solid dielectric, φ is the porous of medium, keffFor effective heat transfer system of medium
Number,For the source item of fluid enthalpy,For the source item of solid enthalpy.
Model is started to start iterative in fluent, the size, directional spreding from air velocity are analyzed, point
The effect that analysis solves using porous media model.
Embodiment
Step 1, the physical model of tobacco edulcoration device cavity is established by three-dimensional drawing software creo 3.0, is passed through
ICEM CFD simplified models and grid division, the boundary condition of model is set, wherein, size and the plant experiment cigarette of physical model
Careless knot screen is identical.
Wherein, as shown in figure 1, being provided with an import, two export tobacco edulcoration mounted cast.Inlet diameter is d=
136mm, mold cavity overall length L=2650mm, high H=730mm, wide B=960mm, homogenating plate thickness of slab t=2mm, the long l=of plate
962mm, the wide b=162mm of plate, aperture d=6mm, hole number is 17*102.In dedoping step, air-flow is come in by inlet pipes,
By the acceleration of accelerator card, conveyer belt section is entered.
Step 2, ready-portioned grid model is imported in fluent softwares, solving model is set in fluent, and apply
Porous media model, by increasing source item in the equation of momentum come the influence of porous zone stream field in simulation model.
Step 3, solving model is calculated in fluent softwares.To the porous zone in tobacco edulcoration device using porous
Dielectric model, by tobacco edulcoration device numerical simulation, the Flow Field Distribution inside device being obtained, for changing for tobacco edulcoration device
Enter and using offer reference.
By the modeling and setting of above-mentioned flow, model is started to iterate to calculate in fluent, iteration 1000 times.Calculate
As a result such as Fig. 7, Fig. 8.From figure 7 it can be seen that be not added with homogenating plate calculate in the case of, air-flow from import enter accelerator card it
Before have larger vortex, whole system has larger energy expenditure, causes the reduction of intake velocity size, and velocity attitude is chaotic,
There is the existing picture of inequality on the speed both sides in exit, and this may result in the situation that tobacco both sides speed is uneven, rolling bounce occurs, shadow
Ring dust removal rate；From figure 8, it is seen that after having added porous media model, basic disappearance is vortexed, exit velocity is also substantially equal
Even, in actual production experiment, equal scoreboard is exactly to serve such a wind effect.
Claims (6)
1. a kind of method for numerical simulation in tobacco edulcoration device flow field, it is characterised in that comprise the following steps：
The physical model and grid division of tobacco edulcoration device cavity are built based on three-dimensional drawing software creo 3.0, and mould is set
The boundary condition of type；The physical model includes gas channel (15), airflow inlet (11), tabula rasa (14), the first air stream outlet
(13), the second air stream outlet (12), entrust plate (16), gas channel (15), which is arranged at, to be entrusted above plate (4), and tabula rasa (14) is set
In gas channel (15), airflow inlet (11) is arranged in gas channel (15) side wall and above tabula rasa (14), and first
Air stream outlet (13) and the second air stream outlet (12) are located at respectively entrusts plate (16) both sides；
The model of grid division is imported in fluent softwares, source item is increased come mould in the equation of momentum based on porous media model
The influence of porous zone stream field in analog model；
Airflow characteristic is obtained to the model solution of grid division.
2. according to the method for claim 1, it is characterised in that the boundary condition of model is arranged to airflow inlet (11) as speed
Entrance is spent, the first air stream outlet (13) and the second air stream outlet (12) are arranged to pressure export, tabula rasa (14) and both ends fluid domain
Between setup of entrances and exits up and down be inner boundary interior.
3. according to the method for claim 1, it is characterised in that fluent softwares are configured before solving, including：
(1) turbulence model selects K-epsilon models；
(2) use and be based on Pressure solution device and simple algorithms；
(3) convective term difference scheme selects second order form；
(4) porous zone and laminar check boxes are chosen in porous domain porous, and with warp under porous zone labels
Test sticky force parameter and the inertia force parameter that the derivation of equation passes through homogenating plate；
(5) boundary condition initial value is set；
(6) iterative steps and convergence precision are set.
4. according to the method for claim 1, it is characterised in that porous media model parameter is set before solving, including
(1) flow parameter of tabula rasa plate is passed through；
(2) loss of pressure on homogenating plate is calculated with Van Winkle equations.
5. according to the method for claim 1, it is characterised in that the airflow characteristic governing equation group includes
(1) continuity equation：
(2) equation of momentum：
(3) equation of momentum has additional momentum source term：
Wherein, xk、xiRepresent different directions, μk、μiThe flow velocity of different directions is represented, ρ density, μ fluid velocities, p pressure, f is single
Body force on the volume mass fluid micellar of position, siBe i to momentum source term, D and C are viscous drag and inertia loss coefficient respectively
Matrix.
6. according to the method for claim 5, it is characterised in that fluent softwares are using the side for solving standard energy transport equation
Method solves to the model of grid division, but have modified conduction flow and excessive item；Wherein
Conduction flow use is effectively conducted coefficient；
Transition item includes the thermal inertia in dielectric solid region：
<mfenced open = "" close = "">
<mtable>
<mtr>
<mtd>
<mrow>
<mfrac>
<mo>&part;</mo>
<mrow>
<mo>&part;</mo>
<mi>t</mi>
</mrow>
</mfrac>
<mrow>
<mo>(</mo>
<mrow>
<msub>
<mi>&phi;&rho;</mi>
<mi>f</mi>
</msub>
<msub>
<mi>h</mi>
<mi>f</mi>
</msub>
<mrow>
<mo>(</mo>
<mrow>
<mn>1</mn>
<mo>-</mo>
<mi>&phi;</mi>
</mrow>
<mo>)</mo>
</mrow>
<msub>
<mi>&rho;</mi>
<mi>s</mi>
</msub>
<msub>
<mi>h</mi>
<mi>s</mi>
</msub>
</mrow>
<mo>)</mo>
</mrow>
<mo>+</mo>
<mfrac>
<mo>&part;</mo>
<mrow>
<mo>&part;</mo>
<msub>
<mi>x</mi>
<mi>i</mi>
</msub>
</mrow>
</mfrac>
<mrow>
<mo>(</mo>
<mrow>
<msub>
<mi>&rho;</mi>
<mi>f</mi>
</msub>
<msub>
<mi>&mu;</mi>
<mi>i</mi>
</msub>
<msub>
<mi>h</mi>
<mi>f</mi>
</msub>
</mrow>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mfrac>
<mo>&part;</mo>
<mrow>
<mo>&part;</mo>
<msub>
<mi>x</mi>
<mi>i</mi>
</msub>
</mrow>
</mfrac>
<mrow>
<mo>(</mo>
<mrow>
<msub>
<mi>k</mi>
<mrow>
<mi>e</mi>
<mi>f</mi>
<mi>f</mi>
</mrow>
</msub>
<mfrac>
<mrow>
<mo>&part;</mo>
<mi>T</mi>
</mrow>
<mrow>
<mo>&part;</mo>
<msub>
<mi>x</mi>
<mi>i</mi>
</msub>
</mrow>
</mfrac>
</mrow>
<mo>)</mo>
</mrow>
<mo>-</mo>
<mi>&phi;</mi>
<mfrac>
<mo>&part;</mo>
<mrow>
<mo>&part;</mo>
<msub>
<mi>x</mi>
<mi>i</mi>
</msub>
</mrow>
</mfrac>
<munder>
<mi>&Sigma;</mi>
<msup>
<mi>j</mi>
<mo>&prime;</mo>
</msup>
</munder>
<msub>
<mi>h</mi>
<msup>
<mi>j</mi>
<mo>&prime;</mo>
</msup>
</msub>
<msub>
<mi>J</mi>
<msup>
<mi>j</mi>
<mo>&prime;</mo>
</msup>
</msub>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mo>+</mo>
<mi>&phi;</mi>
<mfrac>
<mrow>
<mi>D</mi>
<mi>p</mi>
</mrow>
<mrow>
<mi>D</mi>
<mi>t</mi>
</mrow>
</mfrac>
<mo>+</mo>
<msub>
<mi>&phi;&tau;</mi>
<mrow>
<mi>i</mi>
<mi>k</mi>
</mrow>
</msub>
<mfrac>
<mrow>
<mo>&part;</mo>
<msub>
<mi>&mu;</mi>
<mi>i</mi>
</msub>
</mrow>
<mrow>
<mo>&part;</mo>
<msub>
<mi>x</mi>
<mi>k</mi>
</msub>
</mrow>
</mfrac>
<mo>+</mo>
<msubsup>
<mi>&phi;S</mi>
<mi>f</mi>
<mi>h</mi>
</msubsup>
<mo>+</mo>
<mrow>
<mo>(</mo>
<mrow>
<mn>1</mn>
<mo>-</mo>
<mi>&phi;</mi>
</mrow>
<mo>)</mo>
</mrow>
<msubsup>
<mi>S</mi>
<mi>s</mi>
<mi>h</mi>
</msubsup>
</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
Wherein：hfFor the enthalpy of fluid, hsFor the enthalpy of solid dielectric, φ is the porous of medium, keffFor effective heat transfer of medium
Coefficient,For the source item of fluid enthalpy,For the source item of solid enthalpy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603660.2A CN107391845B (en) | 2017-07-23 | 2017-07-23 | Numerical simulation method for flow field of tobacco impurity removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710603660.2A CN107391845B (en) | 2017-07-23 | 2017-07-23 | Numerical simulation method for flow field of tobacco impurity removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107391845A true CN107391845A (en) | 2017-11-24 |
| CN107391845B CN107391845B (en) | 2021-03-26 |
Family
ID=60337180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710603660.2A Active CN107391845B (en) | 2017-07-23 | 2017-07-23 | Numerical simulation method for flow field of tobacco impurity removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107391845B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108228963A (en) * | 2017-11-29 | 2018-06-29 | 河南科技大学 | A kind of tobacco leaf bakes the analysis of machine interior flow field and method of adjustment |
| CN109580433A (en) * | 2018-10-26 | 2019-04-05 | 中国辐射防护研究院 | A kind of source item evaluation method of traditional bomb radioaerosol diffusion |
| CN109885912A (en) * | 2019-01-31 | 2019-06-14 | 武汉科技大学 | A kind of flue gas particle evolution analysis method, calculates equipment and storage medium at device |
| CN113171986A (en) * | 2021-05-19 | 2021-07-27 | 四川中烟工业有限责任公司 | Method for automatically controlling stem removing amount of air separator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1336747A3 (en) * | 2002-02-18 | 2004-10-20 | POLIAUTO di P. Parietti & C. S.n.c. | Electrical injector for gaseous fuel |
| CN201529623U (en) * | 2009-09-28 | 2010-07-21 | 孙建华 | Grain processing color selection cleaner |
| CN105138736A (en) * | 2015-07-31 | 2015-12-09 | 河海大学 | Numerical simulation method of lignite microwave drying furnace flow field |
-
2017
- 2017-07-23 CN CN201710603660.2A patent/CN107391845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1336747A3 (en) * | 2002-02-18 | 2004-10-20 | POLIAUTO di P. Parietti & C. S.n.c. | Electrical injector for gaseous fuel |
| CN201529623U (en) * | 2009-09-28 | 2010-07-21 | 孙建华 | Grain processing color selection cleaner |
| CN105138736A (en) * | 2015-07-31 | 2015-12-09 | 河海大学 | Numerical simulation method of lignite microwave drying furnace flow field |
Non-Patent Citations (2)
| Title |
|---|
| JONATHAN B. MARTIN 等: "Chemical and isotopic evidence of gas-influenced flow at a transform plate boundary: Monterey Bay, California", 《JOURNAL OF GEOPHYSICAL RESEARCH》 * |
| 王华 等: "烟草除杂机均风板均风效果数值模拟", 《机械》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108228963A (en) * | 2017-11-29 | 2018-06-29 | 河南科技大学 | A kind of tobacco leaf bakes the analysis of machine interior flow field and method of adjustment |
| CN108228963B (en) * | 2017-11-29 | 2021-04-09 | 河南科技大学 | Method for analyzing and adjusting internal flow field of tobacco leaf baking machine |
| CN109580433A (en) * | 2018-10-26 | 2019-04-05 | 中国辐射防护研究院 | A kind of source item evaluation method of traditional bomb radioaerosol diffusion |
| CN109580433B (en) * | 2018-10-26 | 2021-05-28 | 中国辐射防护研究院 | Source term estimation method for diffusion of conventional explosive radioactive aerosol |
| CN109885912A (en) * | 2019-01-31 | 2019-06-14 | 武汉科技大学 | A kind of flue gas particle evolution analysis method, calculates equipment and storage medium at device |
| CN109885912B (en) * | 2019-01-31 | 2024-02-27 | 万耀雪 | Flue gas particle evolution analysis method and device, computing equipment and storage medium |
| CN113171986A (en) * | 2021-05-19 | 2021-07-27 | 四川中烟工业有限责任公司 | Method for automatically controlling stem removing amount of air separator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107391845B (en) | 2021-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107391845A (en) | A kind of method for numerical simulation in tobacco edulcoration device flow field | |
| Liang et al. | Phase-field-based lattice Boltzmann modeling of large-density-ratio two-phase flows | |
| Gorji et al. | Fokker–Planck–DSMC algorithm for simulations of rarefied gas flows | |
| Chiu et al. | A conservative phase field method for solving incompressible two-phase flows | |
| Kim et al. | Numerical study of cloud cavitation effects on hydrophobic hydrofoils | |
| Mosbah et al. | New methodology for wind tunnel calibration using neural networks-EGD approach | |
| Choi et al. | Verification of a non-hydrostatic dynamical core using the horizontal spectral element method and vertical finite difference method: 2-D aspects | |
| Olander | CFD simulation of the Volvo cars slotted walls wind tunnel | |
| Jain et al. | CFD modeling of a radiator axial fan for air flow distribution | |
| Li et al. | Large eddy simulation of unsteady shedding behavior in cavitating flows with time-average validation | |
| Allan et al. | Reynolds-averaged navier-stokes simulation of a 2-D circulation control wind tunnel experiment | |
| Carnevale et al. | Film cooling and shock interaction: An uncertainty quantification analysis with transonic flows | |
| Dawoodian et al. | A numerical and experimental study of the aerodynamics and stability of a horizontal parachute | |
| Ling et al. | Analysis of turbulent scalar flux models for a discrete hole film cooling flow | |
| Jordan et al. | Results of the HySafe CFD validation benchmark SBEPV5 | |
| CN108228963B (en) | Method for analyzing and adjusting internal flow field of tobacco leaf baking machine | |
| Pujowidodo et al. | Turbulence model and validation of air flow in crossflow turbine nozzle | |
| Velandia et al. | Computational study of the air flow dynamics in an induced draft cooling tower | |
| Vasconcellos et al. | Flow past a circular cylinder: a comparison between commercial finite volume and finite element codes | |
| Karyofylli et al. | Adaptive temporal refinement in injection molding | |
| Rudnik et al. | CFD Concepts for In-Tunnel Simulation of Low Speed Wind Tunnels with Closed Test Section | |
| Gowda et al. | Integrated Moisture Separator Design Using CFD | |
| CN112182762B (en) | Aircraft wake vortex CFD (computational fluid dynamics) calculation method and system based on adaptive grid | |
| Zhang et al. | Examination of three-dimensional flow over a chambered inflatable wing | |
| Dehghani et al. | Numerical analysis of the effect of sweep-back angle on the stability derivatives of the grid fin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |